Ambient Air Monitoring Reference and Equivalent Methods; Designation of One New Reference Method and One New Equivalent Method

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Ambient Air Monitoring Reference and Equivalent Methods; Designation of One New Reference Method and One New Equivalent Method

Publication Date: 
Thursday, March 4, 2021 - 4:00am
Description: 

Notice is hereby given that the Environmental Protection Agency (EPA) has designated one new reference method for measuring concentrations of sulfur dioxide (SO<INF>2</INF>), and one new equivalent method for measuring concentrations of particulate matter (PM<INF>10</INF>) in ambient air.

Link: 
https://www.federalregister.gov/documents/2021/03/04/2021-04497/ambient-air-moni…
Creator: 
Environmental Protection Agency